What Can Go Wrong; How To Set Up An Ipv6 6To4 Tunnel - ZyXEL Communications ZyWALL 110 Handbook
Zywall/usg series security firewalls
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Figure 633 Window 7 > cmd > ipconfig
6.1.5 What Can Go Wrong?
If your IPv6 connection is not working, please make sure you enable Auto-Configuration on the
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WAN1 IPv6 interface. If not, you will not have any default route to forward the LAN's IPv6 packets.
In Windows, some IPv6 related tunnels may be enabled by default such as Teredo and 6to4
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tunnels. It may cause your computer to handle IPv6 packets in an unexpected way. It is
recommended to disable those tunnels on your computer.
6.2 How to Set Up an IPv6 6to4 Tunnel
This example shows how to configure your ZyWALL/USG to create IPv6 6to4 Tunnel. In this
example, the ZyWALL/USG acts as a 6to4 router which connects the IPv4. After configuration, the
ZyWALL/USG can assign an IPv6 to clients behind it and pass IPv6 traffic through IPv4 environment
to access remote IPv6 network.
Figure 634 ZyWALL/USG with IPv6 6to4 Tunnel Example
Chapter 6 Configure IPv6
ZyWALL/USG Series User's Guide
265
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